Keeping accurate records. I tell people just getting into reloading to write everything down in a ledger. Caliber, bullet info, powder, primer, case info, number of rounds, dies used, reasons for that load, date, year, intended gun, etc. I also add results , good or bad, after I've had a chance to try the load. Each load is assigned a matching number and info sticker on the box.
My first reload was lot # 38-1 shooting 125gr jsp with 4.4 gr of bull's-eye 5/10/1972.
